a,
blockquote,
body,
code,
dd,
div,
dl,
dt,
em,
fieldset,
form,
h1,
h2,
h3,
h4,
h5,
h6,
iframe,
img,
input,
label,
li,
object,
ol,
p,
q,
small,
span,
strong,
table,
tbody,
td,
th,
tr,
ul {
  margin: 0;
  padding: 0;
  border: 0;
}
body {
  font-family: PingFangSC-Regular, Microsoft YaHei, Helvetica;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  background: #f2f2f2;
  -webkit-text-size-adjust: none;
}

a,
a:active,
a:focus,
a:hover,
a:visited {
  text-decoration: none;
}
a,
img {
  -webkit-touch-callout: none;
}
li,
ol,
ul {
  list-style: none;
}
input[type="password"],
input[type="text"],
textarea {
  resize: none;
  outline: 0;
  -webkit-appearance: none;
  white-space: pre-wrap;
  word-wrap: break-word;
  background: #fff;
}
.fn-left,
.fn-right {
  display: inline;
}
.fn-hide {
  display: none !important;
}
.fn-left {
  float: left;
}

.fn-right {
  float: right;
}

.fn-clear {
  zoom: 1;
  /* for IE6 IE7 */
}

.fn-clear:after {
  display: block;
  clear: both;
  height: 0;
  font-size: 0;
  content: "";
}

.fn-clean-space {
  font-size: 0;
  line-height: 0;
  letter-spacing: 0;
  -webkit-text-size-adjust: none;
}
div {
  box-sizing: border-box;
}
/**
 * view-port list:
320x480
320x568
320x570
360x592
360x598
360x604
360x640
360x720
375x667
375x812
393x699
412x732
414x736
480x854
540x960
640x360
720x1184
720x1280
800x600
1024x768
1080x1812
1080x1920
 */
@media screen and (max-width: 320px) {
  html {
    font-size: 42.667px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 321px) and (max-width: 360px) {
  html {
    font-size: 48px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 361px) and (max-width: 375px) {
  html {
    font-size: 50px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 376px) and (max-width: 393px) {
  html {
    font-size: 52.4px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 394px) and (max-width: 412px) {
  html {
    font-size: 54.93px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 413px) and (max-width: 414px) {
  html {
    font-size: 55.2px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 415px) and (max-width: 480px) {
  html {
    font-size: 64px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 481px) and (max-width: 540px) {
  html {
    font-size: 72px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 541px) and (max-width: 640px) {
  html {
    font-size: 85.33px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 641px) and (max-width: 720px) {
  html {
    font-size: 96px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 721px) and (max-width: 768px) {
  html {
    font-size: 102.4px;
    font-size: calc(13.33333333vw);
  }
}
@media screen and (min-width: 769px) and (max-width: 1024px) {
  html {
    font-size: 102.4px;
    font-size: calc(13.33333333vw);
  }
}

@media screen and (min-width: 1025px)  {
  html {
    font-size: 80px;
  }
  body {
    width: 7.5rem !important;
    margin: 0 auto;
  }
}

/* @media screen and (min-width: 1025px)  {
  html {
    font-size: 102.4px;
    font-size: calc(13.33333333vw);
  }
} */